ClassID:

29867

B01D61/58 - page 3 - CPC Classification

Classification description:

Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor Multistep processes

Recent Application in this class:
#601
20140263055
2014-09-18

Ion sequestration for scale prevention in high-recovery desalination systems

#602
20140231344
2014-08-21

Seawater desalination method

#603
20140227151
2014-08-14

RECOVERY AND PURIFICATION OF MONOVALENT SALT CONTAMINATED WITH DIVALENT SALT

#604
20140209462
2014-07-31

Desalination system and method

#605
20140163264
2014-06-12

Method and apparatus for purifying alcohol

#606
20140151283
2014-06-05

Desalination system and desalination method

#607
20140127366
2014-05-08

Process for extracting unwanted acidic compounds from a drinkable liquid

#608
20140110339
2014-04-24

Method for high efficiency reverse osmosis operation

#609
20140102182
2014-04-17

Devices and methods for determination of bioavailability of pollutants

#610
20140091039
2014-04-03

SYSTEM AND METHOD FOR THE TREATMENT OF HYDRAULIC FRACTURING BACKFLOW WATER

#611
20140076810
2014-03-20

Systems and methods for use of water with switchable ionic strength

#612
20140076807
2014-03-20

Low energy reverse osmosis process

#613
20140061130
2014-03-06

Method of heavy metal removal from water streams

#614
20140048462
2014-02-20

Apparatus, system and method for integrated filtration and reverse osmosis desalination

#615
20140042029
2014-02-13

System for rinsing electrodialysis electrodes

#616
20140039180
2014-02-06

Mannose production from palm kernel meal using simulated moving bed separation

#617
20140027379
2014-01-30

RO system and method for disinfecting lines of the RO system

#618
20140027367
2014-01-30

DEHYDRATOR

#619
20140017729
2014-01-16

Method for manufacturing a sugar solution by adding a polymer to the starting solution before filtration

#620
20130341272
2013-12-26

Dewatering Systems and Methods for Biomass Concentration

#621
20130334137
2013-12-19

Non-dispersive oil recovery from oil industry liquid sources

#622
20130327715
2013-12-12

Fluid purification system

#623
20130292331
2013-11-07

IONIC LIQUID RECOVERY AND PURIFICATION IN BIOMASS TREATMENT PROCESSES

#624
20130287655
2013-10-31

Method for removing mercury from a gaseous or liquid stream

#625
20130277221
2013-10-24

Desalination of a composition comprising a contrast agent

#626
20130270165
2013-10-17

Fluid Filtration Systems

#627
20130264260
2013-10-10

Forward osmosis system comprising solvent separation by means of membrane distillation

#628
20130206689
2013-08-15

Brine treatment scaling control system and method

#629
20130190539
2013-07-25

SYSTEM AND METHOD FOR SECONDARY USES OF GLYCOL AND WATER AFTER DEICING

#630
20130186759
2013-07-25

Hemodialysis and peritoneal dialysis systems having electrodialysis and electrodeionization capabilities

#631
20130160435
2013-06-27

Process for the production of hydraulic energy and production of potable water by direct osmosis

#632
20130134094
2013-05-30

Methods and Apparatus for Removing Impurities from Water

#633
20130118982
2013-05-16

Wastewater treatment system

#634
20130118978
2013-05-16

Combined microfiltration or ultrafiltration and reverse osmosis processes

#635
20130092618
2013-04-18

SEPARATION MEMBRANE, WATER TREATMENT UNIT AND WATER TREATMENT APPARATUS

#636
20130092617
2013-04-18

WATER TREATMENT UNIT AND WATER TREATMENT APPARATUS

#637
20130087488
2013-04-11

Electrolytic apparatus with circulator, reverse osmosis filter, and cooler, for producing reducing water

#638
20130075335
2013-03-28

Apparatus and process for treatment of water

#639
20130075334
2013-03-28

Apparatus and Process For Treatment of Water

#640
20130075333
2013-03-28

Apparatus and Process for Treatment of Water

#641
20130075332
2013-03-28

Apparatus and process for treatment of water

#642
20130068620
2013-03-21

Electrodialysis method and apparatus for passivating scaling species

#643
20130062282
2013-03-14

METHOD FOR HIGH EFFICIENCY REVERSE OSMOSIS OPERATION

#644
20130059371
2013-03-07

Device, system and process for modification or concentration of cell-depleted fluid

#645
20130056413
2013-03-07

MEMBRANE TREATMENT OF COOLING TOWER BLOW DOWN WATER

#646
20130048561
2013-02-28

Methods and systems for treating liquids using switchable solvents

#647
20130032533
2013-02-07

Integrated membrane system for distributed water treatment

#648
20130032518
2013-02-07

Combination of a single-station reverse osmosis device with a hemodialysis device

#649
20130020260
2013-01-24

Device for the continuous electrochemical deionisation with integrated membrane unit

#650
20130020259
2013-01-24

Membrane and electrodialysis based seawater desalination with salt, boron and gypsum recovery

#651
20130020250
2013-01-24

Filter module

#652
20130004994
2013-01-03

METHOD FOR PRODUCING PURE SUGAR SOLUTION, AND METHOD FOR PRODUCING CHEMICAL PRODUCT

#653
20130001162
2013-01-03

Apparatus, System, and Method for Forward Osmosis in Water Reuse

#654
20130000519
2013-01-03

Natural crystalline colorant and process for production

#655
20120325743
2012-12-27

Systems and processes for treatment of solutions

#656
20120315209
2012-12-13

METHODS AND SYSTEMS FOR TREATING WATER STREAMS

#657
20120312747
2012-12-13

Method and apparatus for recycling and treating wastes of silicon wafer cutting and polishing processes

#658
20120311796
2012-12-13

APPARATUS AND METHOD FOR PRODUCTION OF NATURAL DYE

#659
20120298569
2012-11-29

Reverse osmosis system

#660
20120279921
2012-11-08

Solvent removal

#661
20120279861
2012-11-08

Method for desalinating saltwater using concentration gradient energy

#662
20120273355
2012-11-01

PROCESS FOR CLEANING A PROCESS CONDENSATE

#663
20120267308
2012-10-25

Recovery of retrograde soluble solute for forward osmosis water treatment

#664
20120267307
2012-10-25

Osmotic separation systems and methods

#665
20120267297
2012-10-25

SYSTEMS AND METHODS FOR FORWARD OSMOSIS FLUID PURIFICATION USING CLOUD POINT EXTRACTION

#666
20120267064
2012-10-25

Lignosulfonate of a certain quality and method of preparation of lignosulfonate of a certain quality

#667
20120261340
2012-10-18

Process of supplying water of controlled salinity

#668
20120255907
2012-10-11

Water producing system and operation method therefor

#669
20120231535
2012-09-13

Organic Forward Osmosis System

#670
20120231145
2012-09-13

METHOD FOR SEPARATING SIALYLLACTOSE MATERIAL

#671
20120228220
2012-09-13

Molecular separator

#672
20120217162
2012-08-30

APPARATUS AND METHOD FOR TREATING NITROGEN COMPOUND-CONTAINING ACIDIC LIQUID

#673
20120205311
2012-08-16

OPTIMIZATION OF SEPARATION FOR VISCOUS SUSPENSIONS

#674
20120175303
2012-07-12

Method and system for increasing recovery and preventing precipitation fouling in pressure-driven membrane processes

#675
20120174639
2012-07-12

Food Waste Concentration System and Related Processes

#676
20120160686
2012-06-28

Process for separating and recovering 3-hydroxypropionic acid

#677
20120149076
2012-06-14

INTEGRATION OF FERMENTAITON WITH MEMBRANE

#678
20120145643
2012-06-14

High efficiency water-softening process

#679
20120145636
2012-06-14

High efficiency water purification system

#680
20120145634
2012-06-14

High Efficiency Water Purification System

#681
20120145630
2012-06-14

Fresh water production method

#682
20120118824
2012-05-17

WATER TREATMENT APPARATUS AND WATER TREATMENT METHOD

#683
20120103905
2012-05-03

Microfiltration method and system

#684
20120080377
2012-04-05

BIOMIMETIC MEMBRANES AND USES THEREOF

#685
20120080314
2012-04-05

Split flow EDI apparatus for treating second pass RO permeate water with high flow rate

#686
20120074043
2012-03-29

Separation of aromatics with pervaporation membrane

#687
20120071316
2012-03-22

Method for conditioning catalysts by means of membrane filtration

#688
20120061300
2012-03-15

MEMBRANE FILTRATION SYSTEM

#689
20120055875
2012-03-08

METHOD TO TREAT PRODUCED WATERS FROM THERMALLY INDUCED HEAVY CRUDE OIL PRODUCTION (TAR SANDS)

#690
20120037566
2012-02-16

Osmotically-assisted desalination method and system

#691
20120035394
2012-02-09

Process for the recovery of betaines from electrodialysis waste stream

#692
20120018365
2012-01-26

SYSTEMS AND METHODS FOR FORWARD OSMOSIS FLUID PURIFICATION

#693
20120006790
2012-01-12

Apparatus and method for treating etching solution

#694
20120004489
2012-01-05

Polyolefin manufacturing system including a membrane fractionation system for diluent recovery

#695
20110315612
2011-12-29

DESALINATION APPARATUS AND METHOD OF CLEANING THE SAME

#696
20110309018
2011-12-22

Optimization of separation for viscous suspensions

#697
20110303606
2011-12-15

Co-producing apparatus for salt and fresh water and co-producing method of the same

#698
20110303544
2011-12-15

Apparatus for fluid purification and methods of manufacture and use thereof

#699
20110300231
2011-12-08

Fluid purification system

#700
20110300230
2011-12-08

Fluid purification system

#701
20110278226
2011-11-17

Process for operating a cooling tower comprising the treatment of feed water by direct osmosis

#702
20110257441
2011-10-20

Method for purifying an alcohol from a fermentation broth using a falling film, a wiped film, a thin film or a short path evaporator

#703
20110233137
2011-09-29

Systems and methods for purification of liquids

#704
20110215000
2011-09-08

Process for controlling the pH and level of target ions of a liquid composition

#705
20110210001
2011-09-01

Cleaning process of producing lactic acid

#706
20110168629
2011-07-14

Process for recovering heavy oil utilizing one or more membranes

#707
20110163031
2011-07-07

Method and apparatus for recovery of water containing silica

#708
20110155666
2011-06-30

METHOD AND SYSTEM USING HYBRID FORWARD OSMOSIS-NANOFILTRATION (H-FONF) EMPLOYING POLYVALENT IONS IN A DRAW SOLUTION FOR TREATING PRODUCED WATER

#709
20110152583
2011-06-23

Purification of biologically-produced 1,3-propanediol

#710
20110152581
2011-06-23

Purification Of Biologically-Produced 1,3-Propanediol

#711
20110147285
2011-06-23

Reverse-osmosis water desalination plant

#712
20110132840
2011-06-09

System and method for using carbon dioxide sequestered from seawater in the remineralization of process water

#713
20110114558
2011-05-19

Solvent removal process

#714
20110100913
2011-05-05

Water purifier and water purification method

#715
20110094963
2011-04-28

MEMBRANE SEPARATION METHOD AND MEMBRANE SEPARATION DEVICE

#716
20110089036
2011-04-21

Method for desalinating saltwater using concentration difference energy

#717
20110083285
2011-04-14

APPARATUS AND METHOD FOR PRODUCTION OF NATURAL DYE

#718
20110062082
2011-03-17

Membrane separation of water and fuel from engine oil in an internal combustion engine

#719
20110062079
2011-03-17

PROCESS FOR TREATING WATER BY A NANOFILTRATION OR REVERSE OSMOSIS MEMBRANE SYSTEM ENABLING HIGH CONVERSION RATES DUE TO THE ELIMINATION OF ORGANIC MATTER

#720
20110056878
2011-03-10

MEMBRANE FILTRATION SYSTEM

#721
20110049054
2011-03-03

WASTEWATER TREATMENT SYSTEM

#722
20110049049
2011-03-03

WATER PURIFICATION SYSTEM SKID

#723
20110049048
2011-03-03

WATER PURIFICATION SYSTEM

#724
20110049034
2011-03-03

MODULAR CROSS-FLOW FILTRATION SYSTEM

#725
20110028759
2011-02-03

Process for the Purification of Organic Acids

#726
20110017666
2011-01-27

Systems and methods for purification of liquids

#727
20110004018
2011-01-06

Process for producing diamine and polyamide

#728
20100317891
2010-12-16

METHOD FOR THE PURIFICATION OF ORGANIC ACIDS

#729
20100307973
2010-12-09

MOBILE UNIT FOR THE TREATMENT OF RAW WATER

#730
20100282689
2010-11-11

Low energy system and method of desalinating seawater

#731
20100276345
2010-11-04

Apparatus for treating radioactive nitrate waste liquid

#732
20100234795
2010-09-16

System and method for regeneration of a fluid

#733
20100233767
2010-09-16

PROCESS FOR THE RECOVERY OF MAGNESIUM FROM A SOLUTION AND PRETREATMENT

#734
20100224561
2010-09-09

PROCESS FOR MINIMIZING PRODUCED WATER BRINES USING FORWARD OSMOSIS

#735
20100224492
2010-09-09

Hemodialysis and peritoneal dialysis systems having electrodeionization capabilities

#736
20100224476
2010-09-09

Combined membrane-distillation-forward-osmosis systems and methods of use

#737
20100212319
2010-08-26

Method and apparatus for generating power utilizing forward osmosis

#738
20100206789
2010-08-19

Dehydrator

#739
20100193436
2010-08-05

Pre-treatment reverse osmosis water recovery method for brine retentate metals removal

#740
20100155329
2010-06-24

Systems and methods for forward osmosis fluid purification using cloud point extraction

#741
20100155248
2010-06-24

Water purification system and method, and module for the system

#742
20100143237
2010-06-10

A Method of Treating Potash

#743
20100140095
2010-06-10

ON-DEMAND INTERMITTENT HIGH PURITY WATER PRODUCTION SYSTEM

#744
20100133183
2010-06-03

Filtration system

#745
20100089756
2010-04-15

Method and apparatus for desalination

#746
20100055211
2010-03-04

PROCESS FOR PRODUCING REFINED NUTRACEUTIC EXTRACTS FROM ARTICHOKE WASTE AND FROM OTHER PLANTS OF THE CYNARA GENUS

#747
20100038246
2010-02-18

Process for the treatment of a stream of substances

#748
20100018921
2010-01-28

Reverse osmosis water recover method

#749
20090314712
2009-12-24

MEMBRANE FILTRATION OF A PRODUCT

#750
20090255673
2009-10-15

Process for recovering heavy oil utilizing one or more membranes

#751
20090223894
2009-09-10

METHOD FOR TREATMENT OF WATER CONTAINING HARDLY-DEGRADABLE SUBSTANCE

#752
20090204419
2009-08-13

Purification of Oil Field Production Water for Beneficial Use

#753
20090178928
2009-07-16

Process for Desalting Glycerol Solutions and Recovery of Chemicals

#754
20090173692
2009-07-09

Water treatment process for oilfield produced water

#755
20090139932
2009-06-04

Water purification system and method using reverse osmosis reject stream in an electrodeionization unit

#756
20090101583
2009-04-23

HYBRID MEMBRANE MODULE, SYSTEM AND PROCESS FOR TREATMENT OF INDUSTRIAL WASTEWATER

#757
20090056940
2009-03-05

Process for recovering heavy oil utilizing one or more membranes

#758
20090020289
2009-01-22

Secondary oil recovery

#759
20090008235
2009-01-08

Membrane-based hybrid process for separation of mixtures of organics, solids, and water

#760
20080290033
2008-11-27

METHOD AND APPARATUS FOR RECOVERY OF WATER CONTAINING SILICA

#761
20080277341
2008-11-13

Method for Making Reverse Osmosis Permeate Water and Mineral Water From Deep Seawater

#762
20080272065
2008-11-06

Molecular separator

#763
20080237110
2008-10-02

Membrane cascade-based separation

#764
20080230476
2008-09-25

Method and system for increasing recovery and preventing precipitation fouling in pressure-driven membrane processes

#765
20080217230
2008-09-11

Water filtering method and apparatus

#766
20080210609
2008-09-04

Water purification system and method, and module for the system

#767
20080197075
2008-08-21

REMOVING MERCURY AND OTHER HEAVY METALS FROM INDUSTRIAL WASTEWATER

#768
20080164209
2008-07-10

WATER TREATMENT SYSTEMS AND METHODS

#769
20080164206
2008-07-10

Method and apparatus for removing minerals from a water source

#770
20080156710
2008-07-03

Pure water producing apparatus

#771
20080105548
2008-05-08

Apparatus for fluid purification

#772
20080093282
2008-04-24

Water treatment system

#773
20080090761
2008-04-17

Method comprising nanofiltration to obtain an MBL product safe from infectious agents and the product obtainable by this method

#774
20080067125
2008-03-20

Method and apparatus for desalination

#775
20080067071
2008-03-20

CONCENTRATE RECYCLE LOOP WITH FILTRATION MODULE

#776
20080000809
2008-01-03

Membrane method of removing oil-soluble metals from hydrocarbons

#777
20070289923
2007-12-20

Method of treating waste liquid from production plant for hydrocarbons or oxygen-containing compounds

#778
20070278152
2007-12-06

METHOD OF IMPROVING PERFORMANCE OF ULTRAFILTRATION OR MICROFILTRATION MEMBRANE PROCESS IN LANDFILL LEACHATE TREATMENT

#779
20070278151
2007-12-06

METHOD OF IMPROVING PERFORMANCE OF ULTRAFILTRATION OR MICROFILTRATION MEMBRANE PROCESSES IN BACKWASH WATER TREATMENT

#780
20070272614
2007-11-29

Acid tolerant polymeric membrane and process for the recovery of acid using polymeric membranes

#781
20070272613
2007-11-29

Acid tolerant polymeric membrane and process for the recovery of acid using polymeric membranes

#782
20070246410
2007-10-25

Device for the Continuous Electrochemical Deionisation with Integrated Membrane Unit

#783
20070235318
2007-10-11

Electrocoat manufacturing process

#784
20070215474
2007-09-20

Electrodialysis system and process

#785
20070181498
2007-08-09

Method and a system for purifying water from a basin, in particular a swimming pool

#786
20070181496
2007-08-09

Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis

#787
20070181488
2007-08-09

Method for making a filter device having more than one filtration compartment

#788
20070163930
2007-07-19

Multiple barrier filter apparatus

#789
20070138096
2007-06-21

SYSTEMS AND METHODS FOR CONTROLLING CONTAMINATE LEVELS OF PROCESSED WATER AND MAINTAINING MEMBRANES

#790
20070119779
2007-05-31

Method for treating raw water containing hardly decomposable substance

#791
20070102359
2007-05-10

Treating produced waters

#792
20070090050
2007-04-26

METHOD AND APPARATUS FOR TREATMENT OF A FLUID STREAM

#793
20070090039
2007-04-26

Apparatus and method for treating injection fluid

#794
20070068871
2007-03-29

Low water recovery rate desalination system and method

#795
20070045189
2007-03-01

Acid mine water demineralization methods

#796
20070034571
2007-02-15

High recovery reverse osmosis process and apparatus

#797
20070031954
2007-02-08

Ethanol recovery process

#798
20060291839
2006-12-28

Water treatment system and process

#799
20060254983
2006-11-16

Mixing vessel and method of use

#800
20060237366
2006-10-26

Solvent removal process

#801
20060231491
2006-10-19

High purity water produced by reverse osmosis

#802
20060157410
2006-07-20

Fully integrated NF-thermal seawater desalination process and equipment

#803
20060144792
2006-07-06

Membrane and process for the recovery of acid

#804
20060144789
2006-07-06

Systems and methods for purification of liquids

#805
20060144787
2006-07-06

Integrated electro-pressure membrane deionization system

#806
20060107946
2006-05-25

Method of preparing granulated sugar from an aqueous sugar solution containing monovalent and polyvalent anions and cations

#807
20060096920
2006-05-11

System and method for conditioning water

#808
20060096864
2006-05-11

Water purifying system

#809
20060091077
2006-05-04

Concentrate recycle loop with filtration module

#810
20060060532
2006-03-23

Water desalination process and apparatus

#811
20060027457
2006-02-09

Apparatus for electrodeionization and method for operating the same

#812
20060014098
2006-01-19

Process for producing photoresist composition, filter, coater and photoresist composition

#813
20060011544
2006-01-19

Membrane purification system

#814
20050274674
2005-12-15

Method and apparatus for treatment of a fluid stream

#815
20050252858
2005-11-17

Fuel and by-products from fermentation still bottoms

#816
20050247631
2005-11-10

Water purification system and method using reverse osmosis reject stream in an electrodeionization unit

#817
20050242036
2005-11-03

Chemical and sludge free water treatment process

#818
20050211240
2005-09-29

Method for purifying by nanofiltration an aqueous sugary solution containing monovalent and polyvalent anions and cations

#819
20050197496
2005-09-08

Methods of protein fractionation using high performance tangential flow filtration

#820
20050173345
2005-08-11

Acid tolerant polymeric membrane and process for the recovery of acid using polymeric membranes

#821
20050171501
2005-08-04

Intravenous solution producing systems and methods

#822
20050145570
2005-07-07

Method and apparatus for parallel desalting

#823
20050139555
2005-06-30

Method of purifying Fischer-Tropsch derived water

#824
20050133446
2005-06-23

Forward osmosis pressurized device and process for generating potable water

#825
20050127001
2005-06-16

Method and device for producing a metal hydroxide

#826
20050126999
2005-06-16

System for the purification and reuse of spent brine in a water softener

#827
20050072675
2005-04-07

Device and method for preparative electrophoresis

#828
20050069997
2005-03-31

Purification of biologically-produced 1,3-propanediol

#829
20050056590
2005-03-17

Process for the removal of contaminants from water

#830
20050051470
2005-03-10

Water filtration system for food processing line

#831
20050045029
2005-03-03

Selective separation of fluid compounds utilizing a membrane separation process

#832
20050031774
2005-02-10

Method of deflavoring soy-derived materials using electrodialysis

#833
20050023222
2005-02-03

Filtration apparatus and method

#834
20050006295
2005-01-13

Water treatment system

#835
19082480
2026-01-20

Integrated method and apparatus for treatment of produced water

#836
18600533
2025-09-09

Rain water collection, filtration, and life boat system

#837
18545323
2025-09-16

Filtration method for producing value added products from rice bran

#838
17838967
2023-04-18

Ocean alkalinity system and method for capturing atmospheric carbon dioxide

#839
17724084
2022-11-01

System and method for desalination

#840
17518719
2023-07-04

Stabilized electromagnetic base liquid, formation thereof and application to high-salt wastewater treatment

#841
16914196
2023-04-04

Vital water

#842
16751368
2023-12-26

Filtration method for producing value added products from rice bran

#843
16739989
2023-01-31

Osmotic system and method for food and oxygen production

#844
16408338
2020-07-21

Environmental water system

#845
16156700
2021-01-19

Control process for wastewater treatment system

#846
15803010
2018-12-18

Process for the production of a concentrated cannabinoid product

#847
15473003
2020-06-16

Process to remove transition metals from waste water

#848
15185528
2017-03-28

Integrated osmosis systems and methods

#849
15042676
2019-08-27

Isolation and purification of conjugated estrogens